Door-operating mechanism.



J. BROMBACHER.

DOOR OPERATING MEGHANISM. vAPPLIOA'LION FILED JUNE 19, 19.11.

1,014,367. Y pauenteamnawm fige/4 N IIIII IHII JULIUS IBROMBACHER, 0F LOS ANGELES, CALIFORNIA.

DOOR-OPERATING MECHANISM.

Specification of Letters Patent.

Application led June 19, 1911.v

Patented J an. 9, 1912.

Serial No. 635,213.

To all whom 'it may concern:

Be it known that I, JULIUS BROMBACHER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a certain new and useful Door Operating Mechanism, of which the following is a specification.

lVIy invention relates to a door operating mechanism, and particularly to an operating mechanism for elevator doors, an object of the invention being toprovide a simple device whereby the doors may with slight effort be opened and closed.

Other objects will appear more fully from the accompanying specification and claims, and from the drawing, in which,

Figure 1 is a front elevation showing the doors and the operating mechanism attached, dotted lines indicating the open position of the doors. Fig. 2, is an enlarged fragmentary front elevation. Fig. 3, is a section on lilies 3 3, Figs. 1, 2, and 4, and Fig. 4, is a section on lines 4-4, Figs. 1, 2, and 3.

Specifically referring to the drawings, 1, designates a door casing, provided with tracks, not shown, on which are hung and arranged to slide two doors 3 and 4, the space not closed by the doors 3 and 4, being closed by the stationary panel 5. The door 3 is provided with a bracket 6, on which is pivoted a geared segment 7, having a slot 8, for the accommodation of a bar 9. On said bar 9, at a short dist-ancey from the end of the same, is a roller 10, which is arranged to operate in a guide-way 11, formed by the edge 12 of the door 4, and a bar 13, which is fastened on the said edge by bolts or rivets 14. Onto the end of said bar 9, is joined by pivot pin 15, a link 16, which is pivotally fastened in a stationary lug 17, provided on one wall of the casing. The link 16, is provided with a slot 18, in which the pin 15, operates, such pin forming a pivot for a plunger 19, which is housed in a casing 20. on the link, and which is held normally projected relatively to said casing by a helical spring 21, resting on the bottom of said casing and impinging'against the extremity of said plunger 19. In mesh with said aforementioned segment 7, is a gear 22, integrally united with a lever or handle 23. Said gear 22, is provided with an arbor 24, which :lits and operates in a boss 25 provided in t-he bracket 6, and a plate 26 serves to hold said segment 7 and gear in place.

The normal position of the parts is that shown in Fig. 1. When the handle 23, is

pulled by the operator, it describes the arc of a circle, and the gear 22 of the same, being in mesh with the segment 7, causes the bar 9 connected therewith to rise. The handle 23, while traveling in a circular plane, also travels with the door 1, in a rectilinear direction. While the door 1, is being pulled open, the door 2, is also moved but at relatively slower speed, by the roller 10, which operates in the guide-way 11. One of the principal objects for disposing the roller 10, as shown, is to prevent binding when the bar 9 and link 16, are in the position shown in dot-ted lines in Fig. 1.

While the plunger 19, serves to retard the return movement of the'bar 9 and link 16, to normal horizontal position, it also serves to insure a tight and firm closure of the door 1, which, by the action of the spring 21, is forced in snug contact with the casing for the doors.A

What I claim, is

1. vThe combination with a door casing and a plurality of doors depending therefrom, of a bar pivotally connected to one of said doors and operatively connected with another of said doors,a link pivotally secured to said bar and said casing, and a f means on one ofsaid doors engaging the end of said bar to `control the movement of said bar and link.

2. The combination with a door casing and a plurality of doors depending therefrom, of a bar pivotally connected to one of said doors and operatively connected with another of said doors, a link pivotally secured to said bar and casing, and geared means for controlling the movement of said bar and link and said doors.

3. The combination with a casing and a plurality of doors depending from and movable in said casing, of a bar pivotally connected to one of said doors and operatively connected with another of said doors, said bar having a geared end, a link pivotally secured to said bar and casing, and means engaging the geared end of said bar for controlling the movement of said bar and link to open and close said doors.

4. The combination with a door casing and a plurality of doors depending therefrom and movable therein, of a bar pivotconnected to said casing and to the end of ally connected to one of said doors, a link f said bar, a buii'er on said link to retard the pivotally secured to said casing and to the end of said bar, an element on said bar engaging another ofsaid doors, and means movable relatively to and With one of said ldoors for operating said bar to control the movement of said doors.

5. The combination With a door easing and a plurality of doors depending therefrom and movable therein, of a bar pivotally connected With one of said doors, said bar having a geared end, a link pivotally movement of said bar and link, a Aroller on said bar 'engaging another of said doors, and means engaging the geared end of said bar to operate said bar and link'and Qontrol the movement of said doors. g In testimony whereof I aiX my signature in the presence of two Witnesses.

JULIUS BROMBACHER.

lVitnesses: HARRY A. HoLLzER, ANToN GLOETZNER, Jr.

Copies of this patent may be obtained for ive cent's each, by addressing the Commissioner of Patents, Washington, D. C. 

